Used in research settings as a potent and selective antagonist for the orexin OX2 receptor, aiding studies on sleep-wake regulation, narcolepsy, and other neurological disorders linked to orexin signaling. Shows utility in preclinical models to investigate the role of OX2 receptor inhibition in promoting sleep and modulating arousal. Also employed as a pharmacological tool to validate the effects of orexin receptor blockers in behavioral and neurochemical assays. Not intended for therapeutic use in humans.